中药材2023，Vol.46Issue(11)：2663-2667,5.DOI:10.13863/j.issn1001-4454.2023.11.004
不同采收时间对白及块茎重及品质的影响
Study of the Effect of Different Harvesting Times on the Weight of Tuber and Quality of Bletilla striata
摘要
Abstract
Objective:To determine the appropriate harvesting time of Bletilla striata tuber,so as to provide technical support for planting of Bletilla striata.Methods:Taking Bletilla striata tuber with different harvesting time during the harvesting period as the re-search object,the weight,drying rate and contents of polysaccharide,total phenol,trace elements and heavy metals in Bletilla striata were analyzed.The variation law of them with different harvesting time was studied.Results:Harvesting time had no significant effect on Bletilla striata tuber weight and drying rate.Fe content was the highest in Bletilla striata tuber at different harvesting times.The total a-mount of trace elements in tuber increased with the extension of harvesting time,and the total amount was the highest in October.The contents of As,Cr and Cu increased with the extension of harvesting time,while the contents of Cd and Pb decreased with the extension of harvesting time.Except for the Cd in Bletilla striata tuber in August,the others did not exceed the standard,and the total amount of heavy metals was the highest in October;As the harvesting time extension,the content of polysaccharides in Bletilla striata tuber gradu-ally decreased and the total phenolic content gradually increased.Conclusion:Considering the content of main active components and trace elements in Bletilla striata tuber and the safety of heavy metals,the best time to harvest Bletilla striata tuber is mid-September.关键词
白及/块茎/采收/品质Key words
Bletilla striata(Thunb.)Reichb.f./Tubers/Harvest/quality分类
中医学引用本文复制引用
陈彩霞,王永,张家春,周鑫伟,张子雄..不同采收时间对白及块茎重及品质的影响[J].中药材,2023,46(11):2663-2667,5.基金项目
贵州省科技计划项目(黔科合支撑[2017]2827) （黔科合支撑[2017]2827）
贵州省高层次创新型人才培养项目(黔科合平台人才[2016]5666) （黔科合平台人才[2016]5666）
贵阳市科技计划项目(筑科合同[2021]3-11 号) （筑科合同[2021]3-11 号）
